Sash actuating device



June 20, 1933. V. F. HOOPER I SASH ACTUATING DEVICE Filed Feb. .28, 1931 fizlwlzibr firnanibwlelfiqvez' J17 12am Patented June 20, 1933 UNKTED STATES VERNON FOWLER HOOPER, OF OSSINING, NEW YORK, ASSIGNOR TO LOB-D & BUBNHAM I OF IRVINGTON', NEW YORK, A CORPORATION OF NEW YORK SASH AGTUATI'NG- DEVICE This invention relates to sash actuating mechanism for greenhouses and industrial buildings, but it may be employed in other structures.

F One of the objects of this invention is to provide mechanism for opening and 010s ing a sash, which mechanism is simple and effective in operation. j g

A further object is to providefa sash ac- 1 tuatingdevice which occupies a relatively small amount of space, having theparts preferably so disposed that the actuating mechanism may be mounted directly upon the roof rafters, side columns or postsor-other sup- I porting members, in relatively close relation to the sash to beoperated and-in such manner that the actuating mechanism is contained entirely between an operating shaft and the sash to be opened so that no parts of 2& the operating-mechanism projectbeyond the line shaft and into the building structure in which the sash" actuating device is employed. When the actuating mechanism is vmounted directly upon the roof or side rafters, the necessity for use of supporting brackets is eliminated. This isrof' advantage in greenhouses as it minimizes objectionable shadow effects.

A further object is to provide a sash ac- ?23 tuating device in which a maximum sash opening may be readily obtained by a minimum movement of the operating shaft. In accordance withthe present invention the maximum sash opening may be obtained by 5 :13. a one-fourth rotation of the line; shaft or through an arc of 90.

A j A further object is to provide a sash actuating device which, in addition to having the advantages above set forth, will exert a TA powerful pressure in holding the sash .in

tightly' closed position to prevent rattling and chattering of the sash,'particularly when the wind is blowing. j r

In a general way, the above objects are "'4 accomplished by providing in combination with a line shaft and a'pivot-ed sash, a plurality of arms, one of whichis freely rotatable rupon the line shaft; the other arm being adjustably fixed upon the line shaft,

; 51? the arms being disposed on opposite sides Application filed February 28, 1931. Serial No. 519,214.

of the line shaft when the sash frame is in closed position, and in then providing a link connecting the freely rotatable arm and the sash, and a second link connecting the other adjustably fixed arm, and the link.

One selected. embodiment of the invention is shown in the accompanying drawing for purposes of illustration, it being understood that various changes in detail construction, arrangement and adjustment of parts may be made, ,without'departing from the spirit and scope of the invention.

In the drawing: 7

Fig. 1 is a fragment of a roof section of a structure, in side elevation, partly in section, showing the general arrangement of the sash actuating mechanism in closed position, and also in open position, the open position being indicated by the dot and dash line.

Fig. 2 is a fragment of vertical section of a structure showing the sash actuating mechanism appliedrto a side sash frame, and'showing the line shaft carried directly by the side rafter. I

Fig. 3 is a perspective showing the line shaft and the actuating mechanism.

Fig. 4 is a vertical section taken through the line shaft, and looking generally in the direction of the arrows 4.4 in Fig. 1..

' ,In a building having a run of pivoted sash frames, there is usually provided a power or line shaft, which extends throughout the length of the run of sash in such position that the sashactuating mechanism is interposed between the line shaft 1 and the sash 18. As shown in the drawing, the lineshaft 1 is preferably rotatably carried directly in the roof rafters 15, side posts 15 or other structural member;

' In certain forms of sash actuating-devices heretofore employed, it has been necessary to provide independent columns, or relatively long brackets in order to supportthe .line

sash and the power line shaft which is preferably carried directly by the roof orrside rafters. If desired a relatively short bracket may be employed for supporting the line shaft in relative close relative to the roof rafters or side post on which the brackets may be mounted.

In the preferred form illustrated, there is shown a plurality of arms 2-4, which are mounted upon the line shaft 1 carried directly by the roof or side rafters 15. The arm 4, is so mounted as to be rotatable relativev to, and upon the line shaft 1, which is shown rotatably mounted in the roof and side rafters 15. v

As shown, the end of the arm 4 comprises a plurality of spaced collar or ring-like portions 56 which receive the line shaft 1.

The arm .2 is adjustably 'fixed upon the line shaft 1 so that the arm 2, is moved upon rotation of the shaft 1. The arm is held in adjustably fixed relation upon the shaft by an adjusting set screw 3. The arm 2 is'shown fixed on the line shaft 1 between the ring portions 5-6 of the arm 4. This arrangement makes a neat and compact structure. Itis understood that other well-known means'may be employed for rotatably mounting the arm 4 upon the shaft 1, and for mounting the arm 2 in adjustably fixed relation upon the shaft 1. I

The movement of the arm 2 which is actuated by the power line shaft 1 is transmitted to the sash 13, through a plurality of links 78. The link 8 is pivotally connected at one end through a bracket fixture 11 to the sash frame, and is pivotally connectedin a suitable manner at the point 10 to the arm 4. The link 7 is pivotally connected at one end 16 to the arm 2, and is pivotally connected at its other end 9 to the link 8, intermediate to the ends thereof. As shown, the link 7 is substantially the same length as, andis parallel to, the arm 4, and the portion of the link 8 between the points of pivotal connection 9 10 is substantially the length of the arm 2. and is disposed substantially parallel thereto. It is understood, ofcourse, that depending upon the particular requirements, that the links and arms may be ofvarious lengths and adjusted in various relations to obtain various effective forces and different ranges of movement:

As shown in the full line position of the parts in Fig. 1, with the sash 13 in closed position, the arm 4 rotatable upon the shaft 1, and the arm 2 adjustably fixed upon and movable withthe shaft'l, are disposed on opposite sides of the shaft 1, and extend'substantially in opposite directions. Apowerful force is exertedby the arm 2, through the leverage of the. link 7 and arm at upon link 8 for tightly holding the sash 13 in closed positio' The frame 13 is shown hinged at'its upper 'closed is that a minimum number of pivot points are employed'so that friction at these points, due to corrosion or lack of lubrication, is reduced to a minimum.

One of the advantages in providing a sash actuating mechanism which at all times occupies a space between the line shaft and the sash when in open and closed position, is that in greenhouses, the shadow effect upon the vegetation is reduced to a minimum, and in industrial structures such as ware houses or power houses, the space in the structure is conserved for either the storage of material, or the free movement of cranes, hoists and the like.

While one preferred form of the invention has been shown and described, it is understood that various changes may be made without departing from the spirit and scope of the invention as defined in the appended claims.

What I therefore claim and desire to secure by Letters Patent is i p 1. In sash actuating mechanism including rafters, a line shaft rotatably supported therein and a sash, a combination of a plurality of arms mounted on said shaft, one

of said arms being'mounted to rotate relative 'to said shaft, said second arm being mounted to rotate with said shaft, a link connecting said first arm with the sash, and a second link connecting said second arm and said first named link:

2. In a device of the character described, including a line'shaft and a sash frame pivotallymounted, a combination of an arm mounted to rotateon said line shaft, 21. second arm adjustably fixed on said shaft to rotate therewith, said arms being disposed on opposite sides of the line shaft when the sash is in closed position, a link connecting said first arm and said sash, and a second link interposed between said last named link and the arm fixed on the line shaft.

3. In sash actuating mechanism includr ing a line shaft and a sash, the combination of a plurality of arms mounted on said shaft, one of said arms being mounted on the shaft to permit relative rotary movement between saidarm and said shaft, a second arm ad-, justably fixed upon the shaft so as to 'move' therewith,said second arm'being disposed on the shaft side opposite to the side on which the first named arm is disposed, a .link having one end pivotally connected to the sash, the other end of said link pivotally connected to the end of said first named arm, said link disposed substantially parallel to said arm adjustably fixed on the line shaft, and a second link having one end pivotallyconnected to said first named link at a point intermediate to the ends of said first named link, the other end of said second link being pivotally connected to the-end of said second named arm adjustably fixed to the shaft, said second link being disposed substantially parallel to said first named arm.

4. In sash actuating mechanism including a line shaft, the combination of a plurality of arms mounted on said shaft, one of said arms being rotatably mounted on said line shaft, the second arm being adjustably fixed on the line shaft so as to rotate therewith, said arms being disposed on opposite sides of the line shaft and extending in opposite directions when the sash is closed, and a link mechanism interposed between the ends of each of said arms, and the sash, arranged to actuate said sash upon movement of the adjustably fixed arm.

5 5. In sash actuating mechanism including an operating shaft, and a sash pivotally mounted, the combination of an arm rotatably mounted on said power shaft, said arm having a forked section at the point of connection with said shaft, a second arm mounted on the power shaft so as to rotate therewith, said second arm being mounted on the power shaft between the forked end of said first arm, a link connecting the sash and the first named rotatable arm, and a second link connecting said first link and said second named arm which is fixed upon the shaft.

6. In sash actuating mechanism including an operating shaft, and a sash pivotally 0 mounted, the combination of an arm rotatably mounted on said power shaft, said arm having a forked section at the point of connection with said shaft, a second arm mounted on the power shaft so as to rotate there- 5 with, said second arm being mounted on a power shaft between the forked end of said first arm, a link connecting the sash and the first named rotatable arm, and a second link connecting said first link and said second named arm which is fixed upon the shaft, said 7 second link being connected to said first link at a point intermediate to the ends of said first link and at a point spaced from the end of the first link connected to the first arm a distance equal substantially to the length of the second named arm fixed on the shaft, said second link being of a length substantially the same as said first named arm.

In testimony whereofI affix my signature.

VERNON FOWLER HOOPER. 

